At a new exhibit in the Museum of Science people are asked t

At a new exhibit in the Museum of Science, people are asked to choose between 76 or 151 random draws from a machine. The machine is known to have 74 green balls and 95 red balls. After each draw, the color of the ball is noted and the ball is put back for the next draw. You win a prize if more than 50% of the draws result in a green ball. Use Table 1.

Calculate the probability of getting more than 50% green balls. (Round “z” value to 2 decimal places, and final answer to 4 decimal places.)

Solution